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Systems, devices, and methods for proximity-based eye tracking

  • US 10,126,815 B2
  • Filed: 12/11/2017
  • Issued: 11/13/2018
  • Est. Priority Date: 01/20/2016
  • Status: Active Grant
First Claim
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1. A wearable heads-up display (“

  • WHUD”

    ) comprising;

    a support frame that in use is worn on a head of a user;

    a processor carried by the support frame;

    a non-transitory processor-readable storage medium carried by the support frame; and

    a proximity-based eye tracker carried by the support frame, wherein the proximity-based eye tracker comprises;

    a first illumination source to illuminate at least a portion of an eye of a user with infrared light; and

    a first photodetector to detect reflections of infrared light from the eye of the user;

    and wherein the processor is communicatively coupled to at least the first photodetector and the non-transitory processor-readable storage medium stores data and/or instructions that, when executed by the processor, cause the processor to;

    determine a distance between the first photodetector and the eye of the user based on reflections of infrared light from the eye of the user; and

    determine a gaze direction of the user based on at least the distance between the first photodetector and the eye of the user.

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